thin gray smoke around 120 mph

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sc400rayray

New Member
iam on the highway raceing a bmw x5, it has a 4.4 engine
i was only 3 or 4 cars in front of him, but when i hit around 120 125 mpr
a thin grayish smoke was coming out of the tail pipes, i just saw a thin cloud
not too thick but enough to see,
i had put raceing fuel in 100 oct, my car had a lot of go to her,
does any know why the smoke, i have not gone that fast in a while, mabey just some build up
well if anyones knows what i should do let me know
thanks
 


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